The Miravalles area is continually monitored, as some
seismic activity is taking place under and inside the caldera.
However, the last recorded eruption of steam vents was in 1946.

Because the
park contains a large underground heated reservoir, it is the site of a
geothermal
energy plant. The hydrothermal field is a hot-water dominated system,
with
a vapor dominated cap (few tens of meters thick) in some parts of the
geothermal
field.

Primary cloud forest and rainforest covers the park, which abounds with
flora
and fauna species in multiple life zones, innumerable rivers,
waterfalls and thermal hot springs.

Driving Directions

Miravalles
is reached by driving on the Interamerican highway to Bagaces, then
turn
off to the right. Drive about 20 miles toward Guayabo until you see the
signs
for Miravalles.